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HomeMy WebLinkAboutSS2 - City Ficus Trees - Tree Trimming• F- 77 cW G F. Q W 0 W U_ w cn W Z W CD U) L- co F- .::3 N V Q L.L U o o U o U Q. CD January 8, 2002 Study Session Item No. 2 G O N CO C+s CLT CCU cow cmi .29 :�— CLgjr CAW Mae- CLV caw C.= 3� 0�c 4f�1'° °O • • c •aD a� Q a� L U (U C O co co C •2 E C- C � U Q cu aD C^O, CU U O r— CD- O Co Z Q co N O 22 O LLJ O 1 L WT co Q (D E OO i 4— .-. T u) ^ r O L p U v tm co CB 0 c LL U- C c Vcn L E N w a) cn N a E E3 co cz O Y � D N }L co U O co cn LL F _C co E o � A U- CD "O 'O .5 a c N O cu 0 M cu co 3 U s CU a) a) a) cu U F- '(n cz a) E a� cB N Q co co .0 • • c •aD a� co C- c aD U O r— CD- O CD N a) O 1 > O OO .-. r CD cu co c L cz D O co F U) U O E cu 0 co s cu cn a� N Q co co .0 • U) -2 O cn ! U U- 45 "ru co �? co co a V O U N CL CD U D L C CU 5 O cv >o fA C> s a O cn U U 00 U co • • 0 0 � � � � � U) =3 U LL- C- 4-� .� • Kil At � L .r (n � U � 0 � cn E . � \ e E e E 0 U) / CIO o 0 • $ ±_ c) Q o® p n � Q ® Q o ? 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L O W Q ca � CL 4) '0 >� O N 4) r O O a) co () U C cv C Q cu a) O a) O =3 co 6~9 LU LL. z ^z LL O LU LU LUU z LL Of a_ O U cu L C U) O U r cn C >+ -� cn L O Q O o a) O .? L 0 j a) LU O v U co � Q) O a) N L L O 1-+ O 'a =3 CU C y C � cB U O LL O_ a) L 6F} � U LLJ ��3 `/ C LLI LLI ZD U LL LU 0 i- WA 0 • • /y a) cz CL O � r 0) Q co C E L a) O O cu Co CD- m cu O cn CD O O C O U () qzt a) LL U O a) -�o =3 N O � a) M O co b4 c O O _ U _ 0 CD w O a) cu (] >, CU O L cB � U >, CU 0 U) a) Q a) U O p) U) cu U a) E LL O cun) v c) � >+ LL M N M a) c E N O _ O m 0- 0 • • /y GENERAL SERVICES DEPARTMENT Report on City Ficus Trees City Council Agenda Study and Closed Sessions January 8, 2002 FACT SHEET • The City Urban Forest is comprised of 33,000+ trees including 178 species • There are 3,200 Ficus Trees (2 major species) — The two predominant species associated with hardscape damage (curb, gutter, sidewalk and roadways) are the Ficus microcarpa Wilda" (Indian Laurel Fig) and the Ficus rubiginosa (Rusty Leaf Fig) • Damage Caused by Ficus Trees — Current estimated annual hardscape damage: $50,000 - $100,000 — 68% of tree claims paid are associated with Ficus trees (1998 -2001) • City Council Tree Policy (G -1) inhibits tree removals by staff • Reforestation — Removal and replacement of Ficus trees with mature alternative species has been successful 1 Concerns Associated with Ficus Trees • Property Damage caused by Ficus Trees is not limited to Newport Beach — Other municipalities in Southern California have either removed Ficus trees or performed extensive root pruning projects (Santa Ana, Garden Grove, Tustin, etc) • Evasive Ficus tree roots can penetrate or damage sewer, water, street light, and gas lines • Evasive Ficus tree roots have caused private property foundation upheaval, as well as, sidewalk, curb & gutter, and irrigation system damage • The majority of the City Ficus Trees are mature specimens, nearing or in excess of 35 years in age within small parkways (5). Ficus trees require large areas for natural growth such as in a park. • Changes in home ownership often results in increased liability and the filing of claims by new owners (Clay Street is an excellent example) • Scheduled Tree Trimming -- Currently the trim cycle is 3.2 years for the City Urban Forest with 1,000 palm and coral trees trimmed annually to reduce storm damage and claims. Paid Property Damage Claims Associated with City Trees (Various species) 1998 -2001 Councilmanic Districts • District 1 .................. .....................$18,521.87 • Dishict 2 .......... .............................$0 • District ................ ....................$165,097.51 (primarily Ficus trees) • District 4 .................. .....................$14,116.80 • District 5 .................. .....................$28,604.00 • District 6 .................. .....................$51,784.07 • District 7 ................... ......................$7,410.13 Total ............. .......................... $285.534.38* *Total does not include public property damage (streets, curbs, gutters, and sidewalks), nor open claims. 2 Examples of Evasive Ficus Tree Roots i Clay Street Examples Examples of Evasive Ficus Tree Roots Clay Street Example Current Efforts to Offset Ficus Tree Root Damage • PARKWAY RENOVATION PROJECTS: — Root pruning — Install root barriers, backfill, and sod — Root barriers postpone evasive root growth for about 3 -5 years, follow -up work required. — Cost of above work is $1,000 per tree (hardscape repair costs not included) — Limited funding restricts operations — Grace period with no tree root damage — up to 5 years 4 Current Efforts to Offset Ficus Tree Damage REFORESTATION PROJECTS: — Tree, root, and stump removal — Irrigation repair — New tree (24" box) and sod installation — Cost: $545 per tree (removal and replacement) — City, community association, and private owner sponsored programs — CDM / ECH Reforestation Project — Good Example Current Efforts to Alleviate Ficus Tree Damage CLAY STREET PROJECT: — 21 Ficus trees (between Irvine Ave. and St. Andrews) — Removed extensive tree roots on private and public property — Repaired damage to irrigation systems, turf, and concrete walkways/sidewalks — Installed 50,000 square feet of sod — Installed deep root barriers (3 feet) — Trimmed trees to inhibit root growth — Cost: $37,810 ($1,800 per tree) CLAY STREET Budget Details I. FISCAL YEAR 2000 -01 Budget: $25,000 Expenditures: $1,970.35 Encumbrances: $25,000 Funding Balance: $23,029.65 (carried over to FY 2000 -01) II. FISCAL YEAR 2001 -02 Carryoverfrom previous year: $23,029.65 New FY Appropriation: $30,000 Total Available Funding: $55,029.65 Expenditures: $37,810 Encumbrances: $11,311` Available Balance: $17,219.65" 'Actual balance of current encumbrances will be $0 upon payment of pending invoices. *"To be used for additional root pruning,barriers and hardscape repairs Staff Recommendations to Decrease Ficus Tree Damaqe • PROPOSED CIP PROJECTS (FY 2002 -03): — Street Tree Reforestation Continuation: $75,000 requested to coordinate the removal and replacement of problem trees Citywide with the Sidewalk Replacement Program. Tree removal and replacement satisfies G -1 Policy requirements ($65,000 budgeted FY 01 -02) Citywide Street Tree Root Pnming (Phase 1): $50,000 requested to remove troublesome tree roots. These trees will have to be pruned on a 4 year cycle (one side per year) to effectively prevent evasive root growth PROPOSED M &O PROJECTS (FY 2002 -03) — Citywide Annual Ficus Tree Trimming: $92,040 to trim 2,360 Ficus trees to International Society of Arboriculture standards on an annual basis to decrease root growth and subsequent hardscape damage. Total request (FY 2002 -03) is $217,040 Staff Recommendations I. CITYWIDE FICUS TREE REMOVAL PROJECT: — $75,000 annually over 12 years (Equates to 188 removals per year) — Mature replacement trees of appropriate species planted over 5 -10 years II. COMPREHENSIVE CITYWIDE ROOT PRUNING PROJECT: — $35,000 annually over 20 years (Equates to root pruning 140 trees per year) — Prune Ficus and other tree species with evasive root systems III. CITYWIDE FICUS TREE TRIMMING PROJECT: — Trim Ficus microcarpa °nitida° (1,190 trees) and Ficus rubiginosa (1,170 trees) — Annual trimming will curtail root growth and reduce hardscape damage — Trim 2,360 Ficus trees annually at a cost of $92,040 ($39 per tree) — Best addresses a timely Citywide resolution of tree root damages to public /private property 7 NEWPORT BEACH CITY COUNCIL STUDY SESSION JANUARY 8, 2002 Item 2 Increased Levels of Tree trimming Services For Ficus Trees Presentation By: Don Webb 1821 Mariners Drive Newport Beach 40 YEAR OLD FICUS TREES ALONG RUTLAND ROAD The ficus trees on the left side of the street are trimmed by the City. The lollypop trees on the right are trimmed and shaped several times a year by the adjoining owners. The trees on both sides of the street are the same age. Note that on the severely pruned ficus trees there are no visible surface roots. This is an extreme example of how regular pruning can control root growth. 1' 11 YEAR TREE GROWTH AT 1821 MARINERS DRIVE Reforestation k . 1990 1990 2002 These trees were trimmed at owners expense 10 /01. Trunks and heads are at least 50% larger than 11 years ago.. Ficus across the street removed about 5 years ago. 2002 MA'. liff Ida POPPY AVENUE, CORONA DEL MAR In 1988 these Eucalyptus trees were slated for "Reforestation" (REMOVAL) because of damage to the street, curbs and sidewalks. The Corona del Mar Community objected and sidewalks were mounded. "CAUTION, UNEVEN SIDEWALK" signs were placed to advise the walking public. 9 H WSW dam• � +� �;: p_ wY �� 9 MI AR] TWO REFORESTATION PROJECTS A little over five years ago 17 ficus trees on Dover Drive between Mariners Dr. and Westcliff Dr. were removed. These are some of the 8 that remain. t r IL 4 :r Dover Drive was `Reforested" with these trees, some of which five years later are barely larger than a closet rod. Isn't this RETWIGATIZATION? Dover Drive "Reforestation" (RETWIGATIZATION ?) L Coast Highway "Reforestation" in Corona del Mar This street was edged with ficus trees about three years ago. a � EXHIBIT 4 REFOREST WITH CONCRETE AT WESTCLIFF DRIVE AND DOVER DRIVE TREE REMOVED �; TREE REMOVED Two Ficus trees removed in November, 2001 and replaced with Concrete. � �v44•. a x,- a a ti X s Orange cones are where two ficus trees were prior to November 2001 EXHIBIT 5 4 - � ..., r 'gyp},. �. , }: �. �• � ' 7 g 4y ii x G r k w 4, 4 x �q .tf SUGGESTED REVISIONS TO THE STAFF'S RECOMMENDATIONS: I. ELIMINATE RECOMMENDATION I. DO NOT ADOPT A FICUS TREE REMOVAL PROJECT. H. ADOPT A COMPREHENSIVE ROOT CONTROL PROGRAM: Add root barrier installation to the root pruning project recommended and review other ways to control root growth. Root barriers and pruning should also be required in all sidewalk and curb replacement projects. III. ADOPT A CITYWIDE ANNUAL FICUS TREE TRIMMING PROJECT: It should be noted that $92,000 is the annual cost of this project but that the additional cost is actually $63,000 per year since the operating budget currently provides $29,000 /year for these trees to be trimmed on an average of every 32 years. PROJECT FUNDING: 1. Appropriate $63,000 this fiscal year to begin the annual ficus tree trimming program. This will provide funds to the trim roughly 2/3 of the ficus trees not being trimmed this year. 2. Proposed CIP Project (FY 2002 -03): Citywide Ficus Street Tree Root Control Program- $50, 000. 3. Proposed M &O Project: Citywide Annual Ficus Tree Trimming: Add $63,000 to the $29,000 normally budgeted, for a total of $92,000 per year. EXHIBIT 7